Full Voltage NEMA Contactors and Starters
Catalog Numbering System
See Motor Overload Protection—Factory Modifications (Forms) for additional Form designations and Solid-State Overload Relay Forms for more information about Motor Logic SSOLRs.
Coil Voltage Codes
Voltage |
Code |
|
---|---|---|
60 Hz |
50 Hz |
|
24 * |
— |
V01 |
120 |
110 |
V02 |
208 |
— |
V08 |
240 |
220 |
V03 |
480 |
440 |
V06 |
600 |
550 |
V07 |
Specify |
Specify |
V99 |
NOTE: These are the common voltages,
more are available. Contact Schneider Electric at www.schneider-electric.com/us/ for information about other voltage codes.
|
How to Order
To Order Specify: |
Catalog Number |
|||
---|---|---|---|---|
|
Class |
Type |
Voltage Code |
Form(s) |
8539 |
SCG44 |
V06 |
AH30P1X11 |
|
Description: NEMA Size 1 (10 hp) electronic motor circuit protector (MCP) combo starter in a NEMA 1 enclosure with a 480 V coil, start/stop push button (A), trip-class selectable SSOLR (H30), red pilot light (P1), and 1 N.O. and 1 N.C. auxiliary contact (X11). |
Factory Modifications (Forms): Refer to Motor Overload Protection—Factory Modifications (Forms) Application Data: Refer to Application Data Dimensions: Refer to Dimensions Separate Enclosures (Class 9991): Refer to Catalog 9999CT9701 Replacement Parts (Class 9998) : Refer to Catalog 9999CT9701 Type S Accessories (Class 9999): Refer to Catalog 9999CT9701 |
IMPORTANT: This information is intended for general interpretation of the catalog numbers. Do not use it to create catalog numbers for this product line.
For more ordering information, refer to the Product Selector at www.schneider-electric.com/us/.
Devices are wired from the factory according to customer preference as follows:
-
Common control
-
Separate control (Form S)
-
Control power transformer (CPT)
Class 8502 Type S AC Magnetic Contactors
General Information
Class 8502 Type S magnetic contactors are used to switch heating loads, capacitors, transformers, and electric motors where overload protection is separately provided. Class 8502 contactors are available in NEMA Sizes 00–7. Type S contactors are designed for operation at 600 Vac, 50–60 Hz.
Power Contact Ratings
All Type S contactors and starters are rated in accordance with NEMA standards. The ratings in the selection tables documented later in this documentation are for normal service. For complete data on power contact ratings, refer to Application Data per NEMA Standards ICS-1 and ICS-2.
Component Parts and Accessories
Holding Circuit Contact
A normally open holding circuit contact for three-wire control is provided on all contactors as standard.
-
Sizes 00–2 contactors use a Class 9999 SX11 internal auxiliary contact as the holding circuit contact.
-
Sizes 3–7 contactors use a Class 9999 SX6 external auxiliary contact as the holding circuit contact. See Class 9999 for the holding circuit contact electrical ratings.
-
Size 00–1 single-phase contactors use a power pole as the holding circuit contact, and therefore has the same rating as the power contacts.
Enclosures
Class 8502 magnetic contactors and Class 8536 magnetic starters are available in the following enclosures:
- NEMA Type 1 General Purpose
- NEMA Type 4 & 4X Watertight and Dusttight Stainless Steel
(stainless steel enclosures ship with hubs installed in the top and bottom of the enclosure) - NEMA Type 4X Watertight, Dusttight, and Corrosion Resistant Glass—Polyester
- NEMA Type 12 Dusttight and Driptight for Industrial Use
The NEMA Type 4 & 4X stainless steel enclosure (Sizes 0-5) has a brushed finish.
Also, NEMA Type 12 devices can be modified for NEMA 3R applications by drilling a 1/8 in. diameter hole in the bottom of the enclosure and using the appropriate watertight conduit hubs.
Separate enclosures are available. See catalog 9999CT9701.
Coil Voltages
AC coils are available for application on 50–60 Hz.
-
NEMA Sizes 00–5 contactors and starters are supplied with coils that are designed to operate satisfactorily on line voltages of 85–110% of rated voltage.
-
NEMA Size 5–7 contactors and starters are supplied with a DC coil operated by a solid state rectifier circuit that is powered by an AC source and also operate on line voltages of 85%-110%.
Voltage Codes have not been added to the Type designations. You must include the Voltage Code when ordering contactors and starters. In addition, 24 Vac and 120 Vac control, polyphase contactors and starters will be wired for separate control (Form S).
Auxiliary Contacts
Additional auxiliary contacts can be added to Type S contactors and starters. See the table Auxiliary Units—Class 8502 and 8536 for maximum number of auxiliary units and table Form Number of Additional Auxiliary Contacts for Form designations for factory installed auxiliary contacts.
Type S Accessories
Additional accessories such as power poles, pneumatic timer attachments, and cover mounted control stations are available as factory or field modifications.
Class 8502 Type S Contactor Selection Tables
3-Pole Polyphase—Open or NEMA 1, 4, and 4X
3-Pole Polyphase—600 Vac Maximum—50–60 Hz
NEMA |
Continuous |
Motor |
Max. |
Open Type |
NEMA 1 |
NEMA 4 &
4X |
---|---|---|---|---|---|---|
Type |
Type |
Type |
||||
00 |
9 |
200 |
1.5 |
SAO12●●● |
SAG12●●● |
Use Size 0 |
230 |
1.5 |
|||||
460 |
2 |
|||||
575 |
2 |
|||||
0 |
18 |
200 |
3 |
SBO2●●● |
SBG2●●● |
SBW12●●● |
230 |
3 |
|||||
460 |
5 |
|||||
575 |
5 |
|||||
1 |
27 |
200 |
7.5 |
SCO2●●● |
SCG2●●● |
SCW12●●● |
230 |
7.5 |
|||||
460 |
10 |
|||||
575 |
10 |
|||||
2 |
45 |
200 |
10 |
SDO2●●● |
SDG2●●● |
SDW12●●● |
230 |
15 |
|||||
460 |
25 |
|||||
575 |
25 |
|||||
3 |
90 |
200 |
25 |
SEO2●●● |
SEG2●●● |
SEW12●●● |
230 |
30 |
|||||
460 |
50 |
|||||
575 |
50 |
|||||
4 |
135 |
200 |
40 |
SFO2●●● |
SFG2●●● |
SFW12●●● |
230 |
50 |
|||||
460 |
100 |
|||||
575 |
100 |
|||||
5 |
270 |
200 |
75 |
SGO2●●● |
SGG2●●● |
SGW12●●● |
230 |
100 |
|||||
460 |
200 |
|||||
575 |
200 |
|||||
6 |
540 |
200 |
150 |
SHO2●●● |
SHG2●●● |
SHW2●●●* |
230 |
200 |
|||||
460 |
400 |
|||||
575 |
400 |
|||||
7 |
810 |
200 |
— |
SJO2●●● |
SJG2●●● |
SJW2●●●* |
230 |
300 |
|||||
460 |
600 |
|||||
575 |
600 |
3-Pole Polyphase—NEMA 4X and 12/3R
3-Pole Polyphase—600 Vac Maximum—50–60 Hz
NEMA |
Continuous |
Motor |
Max. Hp |
NEMA 4X |
NEMA |
---|---|---|---|---|---|
Type |
Type |
||||
00 |
9 |
200 |
1-1/2 |
Use Size 0 |
Use Size 0 |
230 |
1-1/2 |
||||
460 |
2 |
||||
575 |
2 |
||||
0 |
18 |
200 |
3 |
SBW22●●● |
SBA2●●● |
230 |
3 |
||||
460 |
5 |
||||
575 |
5 |
||||
1 |
27 |
200 |
7-1/2 |
SCW22●●● |
SCA2●●● |
230 |
7-1/2 |
||||
460 |
10 |
||||
575 |
10 |
||||
2 |
45 |
200 |
10 |
SDW22●●● |
SDA2●●● |
230 |
15 |
||||
460 |
25 |
||||
575 |
25 |
||||
3 |
90 |
200 |
25 |
SEW22●●● |
SEA2●●● |
230 |
30 |
||||
460 |
50 |
||||
575 |
50 |
||||
4 |
135 |
200 |
40 |
SFW22●●● |
SFA2●●● |
230 |
50 |
||||
460 |
100 |
||||
575 |
100 |
||||
5 |
270 |
200 |
75 |
— |
SGA2●●● |
230 |
100 |
||||
460 |
200 |
||||
575 |
200 |
||||
6 |
540 |
200 |
150 |
— |
SHA2●●● |
230 |
200 |
||||
460 |
400 |
||||
575 |
400 |
||||
7 |
810 |
200 |
– |
— |
SJA2●●● |
230 |
300 |
||||
460 |
600 |
||||
575 |
600 |
Single-Phase 4- and 5-Pole Polyphase—Open or NEMA 1, 4 & 4X
600 Vac Maximum—50–60 Hz
NEMA |
Continuous |
Motor |
Max. |
Open Type |
NEMA 1 |
NEMA 4 &
4X –Watertight, |
---|---|---|---|---|---|---|
Type |
Type |
Type |
||||
1-Pole Single Phase |
||||||
0 |
18 |
115 |
1 |
SBO5●●● |
SBG5●●● |
SBW15●●● |
230 |
2 |
|||||
1 |
27 |
115 |
2 |
SCO5●●● |
SCG5●●● |
SCW15●●● |
230 |
3 |
|||||
2-Pole Single Phase |
||||||
00 |
9 |
115 |
1/3 |
SAO11●●● |
SAG11●●● |
Use Size 0 |
230 |
1 |
|||||
0 |
18 |
115 |
1 |
SBO1●●● |
SBG1●●● |
SBW11●●● |
230 |
2 |
|||||
1 |
27 |
115 |
2 |
SCO1●●● |
SCG1●●● |
SCW11●●● |
230 |
3 |
|||||
2 |
45 |
115 |
3 |
SDO1●●● |
SDG1●●● |
SDW11●●● |
230 |
7-1/2 |
|||||
3 |
90 |
— |
— |
SEO1●●● |
SEG1●●● |
SEW11●●● |
4 |
135 |
— |
— |
SFO1●●● |
SFG1●●● |
SFW11●●● |
5 |
270 |
— |
— |
SGO1●●● |
SGG1●●● |
SGW11●●● |
6 |
540 |
— |
— |
SHO1●●● |
SHG1●●● |
SHW1●●●* |
7 |
810 |
— |
— |
SJO1●●● |
SJG1●●● |
SJW1●●●* |
4-Pole Polyphase |
||||||
0 |
18 |
200 |
3 |
SBO3●●● |
SBG3●●● |
SBW13●●● |
230 |
3 |
|||||
460 |
5 |
|||||
575 |
5 |
|||||
1 |
27 |
200 |
7-1/2 |
SCO3●●● |
SCG3●●● |
SCW13●●● |
230 |
7-1/2 |
|||||
460 |
10 |
|||||
575 |
10 |
|||||
2 |
45 |
200 |
10 |
SDO3●●● |
SDG3●●● |
SDW13●●● |
230 |
15 |
|||||
460 |
25 |
|||||
575 |
25 |
|||||
3 |
90 |
200 |
25 |
SEO3●●● |
SEG3●●● |
SEW13●●● |
230 |
30 |
|||||
460 |
50 |
|||||
575 |
50 |
|||||
4 |
135 |
200 |
40 |
SFO3●●● |
SFG3●●● |
SFW13●●● |
230 |
50 |
|||||
460 |
100 |
|||||
575 |
100 |
|||||
5-Pole Polyphase |
||||||
0 |
18 |
200 |
3 |
SBO4●●● |
SBG4●●● |
SBW14●●● |
230 |
3 |
|||||
460 |
5 |
|||||
575 |
5 |
|||||
1 |
27 |
200 |
7-1/2 |
SCO4●●● |
SCG4●●● |
SCW14●●● |
230 |
7-1/2 |
|||||
460 |
10 |
|||||
575 |
10 |
|||||
2 |
45 |
200 |
10 |
SDO4●●● |
SDG4●●● |
SDW14●●● |
230 |
15 |
|||||
460 |
25 |
|||||
575 |
25 |
|||||
3 |
90 |
200 |
25 |
SEO4●●● |
SEG4●●● |
SEW14●●● |
230 |
30 |
|||||
460 |
50 |
|||||
575 |
50 |
|||||
4 |
135 |
200 |
40 |
SFO4●●● |
SFG4●●● |
SFW14●●● |
230 |
50 |
|||||
460 |
100 |
|||||
575 |
100 |
Single-Phase 4- and 5-Pole Polyphase—NEMA 4X and 12/3R
600 Vac Maximum—50–60 Hz
NEMA |
Continuous |
Motor |
Max. |
NEMA 4X |
NEMA 12/3R * |
---|---|---|---|---|---|
Type |
Type |
||||
1-Pole Single Phase |
|||||
0 |
18 |
115 |
1 |
— |
SBA5●●● |
230 |
2 |
— |
|||
1 |
27 |
115 |
2 |
— |
SCA5●●● |
230 |
3 |
— |
|||
2-Pole Single Phase |
|||||
00 |
9 |
115 |
1/3 |
Use Size 0 |
Use Size 0 |
230 |
1 |
||||
0 |
18 |
115 |
1 |
SBW21●●● |
SBA1●●● |
230 |
2 |
||||
1 |
27 |
115 |
2 |
SCW21●●● |
SCA1●●● |
230 |
3 |
||||
2 |
45 |
115 |
3 |
SDW21●●● |
SDA1●●● |
230 |
7-1/2 |
||||
3 |
90 |
— |
— |
— |
SEA1●●● |
4 |
135 |
— |
— |
— |
SFA1●●● |
5 |
270 |
— |
— |
— |
SGA1●●● |
6 |
540 |
— |
— |
— |
SHA1●●● |
7 |
810 |
— |
— |
— |
SJA1●●● |
4-Pole Polyphase |
|||||
0 |
18 |
200 |
3 |
SBW23●●● |
SBA3●●● |
230 |
3 |
||||
460 |
5 |
||||
575 |
5 |
||||
1 |
27 |
200 |
7-1/2 |
SCW23●●● |
SCA3●●● |
230 |
7-1/2 |
||||
460 |
10 |
||||
575 |
19 |
||||
2 |
45 |
200 |
10 |
SDW23●●● |
SDA3●●● |
230 |
15 |
||||
460 |
25 |
||||
575 |
25 |
||||
3 |
90 |
200 |
25 |
— |
SEA3●●● |
230 |
30 |
||||
460 |
50 |
||||
575 |
50 |
||||
4 |
135 |
200 |
40 |
— |
SFA3●●● |
230 |
50 |
||||
460 |
100 |
||||
575 |
100 |
||||
5-Pole Polyphase |
|||||
0 |
18 |
200 |
3 |
— |
SBA4●●● |
230 |
3 |
||||
460 |
5 |
||||
575 |
5 |
||||
1 |
27 |
200 |
7-1/2 |
— |
SCA4●●● |
230 |
7-1/2 |
||||
460 |
10 |
||||
575 |
10 |
||||
2 |
45 |
200 |
10 |
— |
SDA4●●● |
230 |
15 |
||||
460 |
25 |
||||
575 |
25 |
||||
3 |
90 |
200 |
25 |
— |
SEA4●●● |
230 |
50 |
||||
460 |
30 |
||||
575 |
50 |
||||
4 |
135 |
200 |
40 |
— |
SFA4●●● |
230 |
50 |
||||
460 |
100 |
||||
575 |
100 |
Class 8536 Type S AC Magnetic Starters
General Information
Type S magnetic starters are used for full-voltage starting and stopping of AC squirrel cage motors. Class 8536 Type S magnetic starters utilize a Class 8502 contactor design (see General Information for more information) with direct mounted overload protection. Motor overload protection for three-phase starter applications can be provided through one of four options described in the follows sections.
Solid-State Overload Relay Protection (Motor Logic™ SSOLR)
These ambient-insensitive electronic overload relays are available on Sizes 00–6 and standard on size 7. They provide phase loss and phase unbalance protection. To order, add Form H30 (for selectable trip class 10 or 20 protection). For more information about Motor Logic SSOLRs, see the overload relay section Solid-State Overload Relay Forms or the Digest. (Catalog no. example: 8536SCO3V06H30).
Adapted Bimetallic or Solid-State Overload Relay (NEMA size 00-1)
The Adapted Bimetallic or Solid-State motor starter consists of a specially designed adapter that attaches with bus bars to the NEMA Type S contactor and holds the IEC Style overload relay: LRD/LR3D bimetallic or LR9D solid-state. This starter configuration is ordered by adding Form E (adapter only) to the standard catalog number. Based on the FLA of the motor, the LRD, LR3D, or LR9D overload relay can then be purchased separately and installed in the field to operate the starter. For more information, see Adapted Bimetallic Overload Relay Forms or the Digest. (Catalog no. example: 8536SCO3V06E—without overload relay).
TeSys™ T Motor Management System (NEMA sizes 1-6)
TeSys T is a flexible system that integrates seamlessly into your automation system through five major communication protocols. TeSys T can predict what will happen in the process, as it accurately monitors current, voltage, and power over a wide range. For additional information about TeSys T Motor Management System, see the overload relay section TeSys™ T Factory Modifications (Forms) or the Digest.
Melting Alloy Type Thermal Overload Relays
Melting alloy type thermal overload blocks are installed as part of the starter, and thermal elements must be selected and installed separately to operate the starter. For a three-phase motor, three thermal units must be ordered using the Thermal Unit Selection tables in the Digest. The catalog number includes no Form number (for example, 8536SCO3V06).
Class 8536 Type S Starter Selection Tables
3-Pole Polyphase—Open or NEMA 1, 4, & 4X
For Form H30•, special lower-FLA factory-assembled starter combinations with Motor Logic SSOLR protection are available for certain sizes. See Solid-State Overload Relay Forms for more information.
3-Pole Polyphase—600 Vac Maximum—50–60 Hz, with Motor Logic™ SSOLR*
NEMA |
Continuous |
Motor |
Max. |
Open Type |
NEMA 1 |
NEMA 4 &
4X |
NEMA 4X |
---|---|---|---|---|---|---|---|
Type |
Type |
Type |
Type |
||||
00 |
9 |
200 |
1.5 |
SAO12●●●H30 |
SAG12●●●H30 |
Use Size 0 |
Use Size 0 |
230 |
1.5 |
||||||
460 |
2 |
||||||
575 |
2 |
||||||
0 |
18 |
200 |
3 |
SBO2●●●H30 |
SBG2●●●H30 |
SBW12●●●H30 |
SBW22●●●H30 |
230 |
3 |
||||||
460 |
5 |
||||||
575 |
5 |
||||||
1 |
27 |
200 |
7.5 |
SCO3●●●H30 |
SCG3●●●H30 |
SCW13●●●H30 |
SCW23●●●H30 |
230 |
7.5 |
||||||
460 |
10 |
||||||
575 |
10 |
||||||
2 |
45 |
200 |
10 |
SDO1●●●H30 |
SDG1●●●H30 |
SDW11●●●H30 |
SDW21●●●H30 |
230 |
15 |
||||||
460 |
25 |
||||||
575 |
25 |
||||||
3 |
90 |
200 |
25 |
SEO1●●●H30 |
SEG1●●●H30 |
SEW11●●●H30 |
SEW21●●●H30 |
230 |
30 |
||||||
460 |
50 |
||||||
575 |
50 |
||||||
4 |
135 |
200 |
40 |
SFO1●●●H30 |
SFG1●●●H30 |
SFW11●●●H30 |
SFW21●●●H30 |
230 |
50 |
||||||
460 |
100 |
||||||
575 |
100 |
||||||
5 |
270 |
200 |
75 |
SGO1●●●H30 |
SGG1●●●H30 |
SGW11●●●H30 |
— |
230 |
100 |
||||||
460 |
200 |
||||||
575 |
200 |
||||||
6 |
540 |
200 |
150 |
SHO2●●●H30 |
SHG2●●●H30 |
SHW2●●●H30* |
— |
230 |
200 |
||||||
460 |
400 |
||||||
575 |
400 |
||||||
7 |
810 |
200 |
— |
SJO2●●●H30 |
SJG2●●●H30 |
SJW2●●●H30* |
— |
230 |
300 |
||||||
460 |
600 |
||||||
575 |
600 |
3-Pole Polyphase—NEMA 12/3R
For Form H30•, special lower-FLA factory-assembled starter combinations with Motor Logic SSOLR protection are available for certain sizes. See Solid-State Overload Relay Forms for more information.
3-Pole Polyphase—600 Vac Maximum—50–60 Hz*
NEMA |
Continuous |
Motor |
Max. |
NEMA 12/3R* |
---|---|---|---|---|
Type |
||||
00 |
9 |
200 |
1.5 |
Use Size 0 |
230 |
1.5 |
|||
460 |
2 |
|||
575 |
2 |
|||
0 |
18 |
200 |
3 |
SBA2●●●H30 |
230 |
3 |
|||
460 |
5 |
|||
575 |
5 |
|||
1 |
27 |
200 |
7.5 |
SCA3●●●H30 |
230 |
7.5 |
|||
460 |
10 |
|||
575 |
10 |
|||
2 |
45 |
200 |
10 |
SDA1●●●H30 |
230 |
15 |
|||
460 |
25 |
|||
575 |
25 |
|||
3 |
90 |
200 |
25 |
SEA1●●●H30 |
230 |
30 |
|||
460 |
50 |
|||
575 |
50 |
|||
4 |
135 |
200 |
40 |
SFA1●●●H30 |
230 |
50 |
|||
460 |
100 |
|||
575 |
100 |
|||
5 |
270 |
200 |
75 |
SGA1●●●H30 |
230 |
100 |
|||
460 |
200 |
|||
575 |
200 |
|||
6 |
540 |
200 |
150 |
SHA2●●●H30 |
230 |
200 |
|||
460 |
400 |
|||
575 |
400 |
|||
7 |
810 |
200 |
– |
SJA2●●●H30 |
230 |
300 |
|||
460 |
600 |
|||
575 |
600 |
2-Pole Single Phase—Open or NEMA 1, 4 & 4X
For thermal unit selection, refer to the Digest.
2-Pole Single Phase—600 Vac Maximum—50–60 Hz (require one melting alloy thermal unit)
NEMA |
Continuous |
Motor |
Max. |
Open Type |
NEMA 1 |
NEMA 4 and
4X |
NEMA 4X |
---|---|---|---|---|---|---|---|
Type |
Type |
Type |
Type |
||||
00 |
9 |
115 |
1/3 |
SAO11●●● |
SAG11●●● |
Use Size 0 |
Use Size 0 |
230 |
1 |
||||||
0 |
18 |
115 |
1 |
SBO1●●● |
SBG1●●● |
SBW11●●● |
SBW21●●● |
230 |
2 |
||||||
1 |
27 |
115 |
2 |
SCO1●●● |
SCG1●●● |
SCW11●●● |
SCW21●●● |
230 |
3 |
||||||
1P |
36 |
115 |
3 |
SCO2●●● |
SCG2●●● |
SCW12●●● |
SCW22●●● |
230 |
5 |
||||||
2 |
45 |
115 |
3 |
SDO6●●● |
SDG6●●● |
SDW16●●● |
SDW26●●● |
230 |
7-1/2 |
4-Pole, 2-Phase—Open or NEMA 1, 4 & 4X
For thermal unit selection, refer to the Digest.
4-Pole, 2-Phase—600 Vac Maximum—50–60 Hz (require two melting alloy thermal units)
NEMA |
Continuous |
Motor |
Max. |
Open Type |
|
NEMA 4 and
4X |
NEMA 4X |
---|---|---|---|---|---|---|---|
Type |
Type |
Type |
Type |
||||
0 |
18 |
200 |
3 |
SBO3●●● |
SBG3●●● |
SBW13●●● |
SBW23●●● |
230 |
3 |
||||||
460 |
5 |
||||||
575 |
5 |
||||||
1 |
27 |
200 |
7-1/2 |
SCO4●●● |
SCG4●●● |
SCW14●●● |
SCW24●●● |
230 |
7-1/2 |
||||||
460 |
10 |
||||||
575 |
10 |
||||||
2 |
45 |
200 |
10 |
SDO2●●● |
SDG2●●● |
SDW12●●● |
SDW22●●● |
230 |
15 |
||||||
460 |
25 |
||||||
575 |
25 |
||||||
3 |
90 |
200 |
25 |
SEO2●●● |
SEG2●●● |
SEW12●●● |
— |
230 |
30 |
||||||
460 |
50 |
||||||
575 |
50 |
||||||
4 |
135 |
200 |
40 |
SFO2●●● |
SFG2●●● |
SFW12●●● |
— |
230 |
50 |
||||||
460 |
100 |
||||||
575 |
100 |
2-Pole Single Phase—NEMA 12/3R
For thermal unit selection, refer to the Digest.
2-Pole Single Phase—600 Vac Maximum—50–60 Hz (require one melting alloy thermal unit)
NEMA |
Continuous |
Motor |
Max. |
NEMA 12/3R* |
---|---|---|---|---|
Type |
||||
00 |
9 |
115 |
1/3 |
Use Size 0 |
230 |
1 |
|||
0 |
18 |
115 |
1 |
SBA1●●● |
230 |
2 |
|||
1 |
27 |
115 |
2 |
SCA1●●● |
230 |
3 |
|||
1P |
36 |
115 |
3 |
SCA2●●● |
230 |
5 |
|||
2 |
45 |
115 |
3 |
SDA6●●● |
230 |
7-1/2 |
4-Pole, 2-Phase—NEMA 12/3R
For thermal unit selection, refer to the Digest.
4-Pole 2-Phase—600 Vac Maximum—50–60 Hz (require two melting alloy thermal units)
NEMA |
Continuous |
Motor |
Max. |
Coil |
NEMA 12/3R * |
---|---|---|---|---|---|
Type |
|||||
0 |
18 |
200 |
3 |
208 |
SBA3●●● |
230 |
3 |
240 |
|||
460 |
5 |
480 |
|||
575 |
5 |
600 |
|||
1 |
27 |
200 |
7-1/2 |
208 |
SCA4●●● |
230 |
7-1/2 |
240 |
|||
460 |
10 |
480 |
|||
575 |
10 |
600 |
|||
2 |
45 |
200 |
10 |
208 |
SDA2●●● |
230 |
15 |
240 |
|||
460 |
25 |
480 |
|||
575 |
25 |
600 |
|||
3 |
90 |
200 |
25 |
208 |
SEA2●●● |
230 |
30 |
240 |
|||
460 |
50 |
480 |
|||
575 |
50 |
600 |
|||
4 |
135 |
200 |
40 |
208 |
SFA2●●● |
230 |
50 |
240 |
|||
460 |
100 |
480 |
|||
575 |
100 |
600 |
Class 8536 Types SB–SD Starters with Auxiliary Load Terminals
Capacitors are sometimes used in motor branch circuits to improve power factor. The Size 0–2 Type SB–SD starters listed in the table 3-Pole Polyphase—600 Vac Maximum—50–60 Hz (devices require three melting alloy thermal units) include three auxiliary terminals to allow easy connection of power factor correction capacitors. When capacitors are connected using these terminals, no adjustment to the selection of thermal units is necessary. The auxiliary terminals accept 12–16 AWG solid or stranded wire. NEMA Size 3 and 4 starters have provisions for auxiliary connections as a standard. You must supply lugs as necessary.
The Type S starters with auxiliary load terminals can also be used to control two motors simultaneously from a single starter. However, this application is tightly restricted by Section 430-53 of the National Electrical Code. Refer to the NEC for restrictions regarding overload protection, size of controller, and motor branch circuit protection.
3-Pole, Polyphase Starters
For thermal unit selection, refer to the Digest.
Extra Capacity Single-Phase Starters (Not NEMA Rated)
For thermal unit selection, refer to the Digest.
2-Pole Single Phase—250 Vac Maximum—50–60 Hz (require one melting alloy thermal unit)
Motor |
Max. |
Open Style |
NEMA 1 |
NEMA 3R |
NEMA 4 and 4X |
NEMA 4X |
NEMA 12/3R * |
---|---|---|---|---|---|---|---|
Type |
Type |
Type |
Type |
Type |
Type |
||
115 |
5 |
SDO8●●● * |
— |
SDH8●●● * |
— |
— |
— |
230 |
10 |
||||||
115 |
7-1/2 |
SEO6●●● |
SEG6●●● |
SEH6●●● |
SEW16●●● |
SEW26●●● |
SEA6●●● |
230 |
15 |